The AirTAC GFR400C15MLJF2WT AirTAC Filter Regulator NPT 1/2 in is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR400C15MLJF2WT is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in one body. This size 400 unit is built for 1/2 in NPT ports, carries the 5 um filter element (code W) in place of the 40 um standard, drains by hand through its manual drain, and is the low-pressure regulator type. A square pressure gauge reading in psi is fitted, the bowl is metal, and the unit is supplied without a mounting bracket. It runs on compressed air at up to 1.0 MPa (145 psi) inlet and -5 to 70 C (non-freezing).
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options including automatic or differential-pressure drains, 40 um or 5 um elements, MPa, psi or bar gauge scales, G, NPT or PT threads, mounting brackets and a reverse-flow check valve. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C15MLJF2WT AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Feeding paint spray guns in a finishing booth: the 5 um element strips water and particulate that would ruin a finish, while the regulator holds a reduced, steady setting at the gun.
On a machining cell with pneumatic clamps that must not be slammed at full line pressure, the low-pressure regulator type lets the circuit run at a gentle, controlled setting downstream of the filter.
On a carton-sealing or wrapping line, one body filters the plant air to 5 um and regulates it before it reaches cylinders, sealing jaws and vacuum generators, with the manual drain emptied at shift checks.
Choose the size and port step against the air your circuit needs: this unit is size 400 with a 1/2 in NPT port. Drain type is a real choice - manual (as here, the bowl is emptied by hand), automatic, or differential-pressure. Filter grade is 40 um standard or 5 um (W) for finer protection; this unit carries the 5 um element. Gauges are embedded square as standard with optional external round gauges in MPa, psi or bar scales; this one reads psi. Thread is PT as the AirTAC standard with G and NPT as order options - this unit is NPT. Brackets are optional; this unit is supplied without one. Flow is published as curves, not a single rated figure, so ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so we do not quote a number here. Send us your flow and pressure requirements and we will confirm the sizing from the datasheet before you order.
This unit drains its metal bowl by hand, which suits lines with planned maintenance checks. If the unit sits where nobody opens the drain regularly, an automatic or differential-pressure drain version removes that task - both are catalogue options in the same size.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.